Upgrade dependencies

Author: tailhook

Cargo.toml

@@ -14,7 +14,7 @@ version = "0.2.0"
 authors = ["Paul Colomiets <paul@colomiets.name>"]
 
 [dependencies]
-combine = "=3.0.0-beta.1"
+combine = "3.2.0"
 failure = "0.1.1"
 
 [dev-dependencies]